9
confirm that management is positively and significantly correlated to productivity in both
sub-samples with similar coefficients.
17
In summary, these results show that structured management practices are tightly and robustly
linked to productivity even when we control for a large range of controls.
18
Moreover, the
relationship in both sign and magnitude looks similar in both the manufacturing and service
sectors. While the evidence is not causal, it is consistent with the studies discussed earlier,
which rely on stronger identification schemes.
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